The function of a automotive fuel injector, is to spray atomized fuel; into the combustion chamber, of an internal combustion engine.
After pushing the fuel, through a small hole, at high pressure, it becomes atomized.
The automotive fuel injector, has replaced the old carburetor system. The end result is, engines run with greater fuel efficiency and also, help to reduce emissions.
An automotive fuel injector, is a mechanical valve, that is, controlled electronically. This is what makes it capable of, opening and closing, many times a second.
So, in a traditional automotive fuel injector setup, the injector sprays fuel, into the intake manifold. It then, mixes with air, before entering the combustion chamber. In recent years, more manufacturers, have made the switch to direct injection. Consequently, a system in which, the fuel injector sprays fuel; directly into the cylinder, instead of into the intake. This system allows for, higher fuel efficiency and better emissions control, as well as higher power output, from smaller engines.
So, Why Do They Fail
An automotive fuel injector, is not a wear item and can even last, the life of the vehicle. However, as with every mechanical part, there are issues that can and do occur. Fuel injectors, can fail from contaminants (such as dirt, carbon buildup, or low-quality fuel) clogging the injector. Sometimes, they can be cleaned, but they often require replacement.
So, an automotive fuel injector can leak, due to aging of its rubber seals; or it can leak from, cracks in the injector itself. If the seals are the culprit, they can usually be replaced on their own. However, the only remedy for a cracked injector is, complete replacement. The electrical components of an injector, can also fail from age, heat, and moisture damage.
Thank You !
